Subgenus Pallasiomys. A distinctive species (Pavlinov and Rossolimo, 1987; Pavlinov et al., 1995a) that was reviewed by Pavlinov et al. (1990) and Harrison and Bates (1991). The Iranian population was reviewed by Lay (1967), the Syrian by Misonne (1957), Turkish by Yiit et al. (1997b), and the segment in Russia by Gromov and Erbajeva (1995).